I think they are both named after people.
The surname 'Biro' originates from Hungary. It is a common Hungarian surname.
lazlo biro invented the biro in 1985
Ladislao Biro Invented the Biro with his brother, Georg.
A red Biro is a common type of ballpoint pen that writes in red ink. It is typically used for everyday writing tasks and note-taking.
Both サンドイッチ (san do icchi*) and サンドウィッチ (san do wicchi*) are words for sandwich in Japanese but the first one is more common to use. *:Geminate or emphasized double consonant sound.
A biro is a BIRO-brand ballpoint pen, or by extension, any variety of ballpoint pen.
Barney Biro's birth name is Barnet Wolf Biro.
It is one of those "imported" words. Sandwich in Spanish is "sandwich". Also can be "torta", "intercalar".
Laszlo Biro's wife's name is Elsa Elizabeth Schick Biro.
It is one of those "borrowed" words. "Sándwich" is "sandwich".
He is married to Bonnie Biro.
The first biro was created in 1985